Tap or cock.



U- P. E. A. BENKISER.

TAP 0R COCK.

APPLIG ATION FILED 001 .3, 1910.

1,013,781. Patented Jan.2,1912.

2 SHEETS-SHEBT 1.

a ah.

Jmww r, zi a C. F. E. A. BENKISER.

TAP 0R COCK.

APPLICATION FILED 0013, 1910.

1,013,731. Patented JanZ, 1912.

2 BHBETSSHEET 2.

Fig.1.

CARL FRIEDRICH EMIL ALBERT BENKISER, OF STRASSBURG, GERMANY.

TAP 0R COCK.

Specification of Letters Patent.

Application filed October 3,

Patented Jan. 2,1912.

1910. Serial No. 585,105.

To all whom it may concern.-

, Be itknown, that I, CARL FRIEDRICH EMIL ALBERT BENKISER, a subject of the King of /Vurttemberg, and resident of Strassburg, Alsace-Lorraine, Germany, have invented new and useful Improvements in or Relating to Taps or Cocks, of which the. following is a specification.

This invention relates to an improved valve outlet cock or tap in which the pack ing washer of the valve, which, as is well known, is subject to great wear, can be exchanged at any time without it being necessary to remove the cock from its connection.

1 drawings.

Figure 1 shows a sectional view of a valve cock in the closed, and Fig. 2 in the open position, Fig. 3 iso similar view of the valve, cock in such closed .position that the main valve can be removed, Fig. 4 shows a sectional view of the valve cock from which the packing washer and the accessories have been removed, Fig. 5 shows the main valve removed, together with the packing washer and the accessory parts. Figs. 6 and 7 are cross-sections on line AA and BB re spectively of Fig. 1, and Figs. 8 and 9 show in section modified forms of the lower part of the valve cock.

A valve cock according to the present invention consists of a hollow spindle a which is adapted to be screwed on the supply pipe. The spindle a miy be provided with a packing ring a for preventing leaking at the connecting joint with the supply pipe. At its lower end, the hollow spindle a isprovided with an outlet 7/, and on its outer surface with a screw thread c. On the screw thread c is screwed a casing (Z provided in the interior with acorrespomling female screw thread, in such manner that it can be screwed up and down on the hollow spindle a: by means of a handle 6 fixed to it by a screw thread. The casing (Z is reduced at its bottom end, and the wall at the said reduced portion is provided with grooves f (Figs. 4, 6, 7). In the bottom portion of the casing is situated the main valve (Fig. 5 The latter carries at the top a packing disk or washer f/ mounted in the valve plate h. The valve plate is secured, by means of a screw 5 threaded into the hollow hub of the valve supports or ribs These valve.

supports it are as wide (Fig. 6) as the guide groovesf provided in the reduced bottom portion of the casing, so that the whole main valve (Fig. 5) can be introduced into the casing from the bottom by introducing the valve supports into the grooves, and it is held fast in the casing as shown in Figs. 1-3, as soon as it is turned to a slight extent, preferably through an' angle of 45. Into the hub of the valve supports is screwed from below a holding pin m which, as shown in Fig. 7,'is slotted. Into said slotare introduced four rectangular brass plates Z which are held tast in the slot by bending them in the shape of a star, and form a jet regulator.

In the hollow spindle a there is mounted a central stem a resting on the packing washer g and carrying an automatically closing valve 0 which is guided in the hollow spindle by means of two cross guides 79 fixed to the stem and adapted to rest on the inner seatof the outlet 7).

When the main valve (Fig. 5) has been introduced into the casing as described, the casing can be screwed on the hollow spindle (a by means of the handle 0, to such an extent that the packing washer r engages with the bottom edge of the outlet 1) of the hollow spindle, so that the outlet is thus closed (Fig. If, however, the casing (Z is screwed slightly downward by means of the handle both the valve 0 and the packing washer y will be out of engagement with their seats (Fig. and the water or the like supplied through the hollow spindle 1/, will be able to pass through the outlet (1 and escape at the bottom of the casing. ll however the casing is screwed still tarther downward on the hollow spindle (L by means of the'handle c (Fig. 3), so that the pin r1. is not supported by the packing washer. the check valve 0 will come into engagement with the inner seat of the outlet 7) and close the passage. In that position (Fig. 4 the main valve can be removed from the casing by slightly raising it and turning it until its valve supports it come into alinemcnt with the guide slots and the packing can then be changed.

The advantages of the device are several; the vertical position of the automatically closing valve, and the flooding of the smile by the liquid, enable the constrimtion to be made very compact, cheap, and suitable tor numerous purposes. Every time the tap is used the automatically closing device slides up and down, and it always remains in per feet order and cannot get 1arnmcd, as there spindle.

is .very little friction in the hollo' The cock becomes closed after suil ntrotation of the handle; 5 in either (lliu 1011 instead of in one direction as in the ordinary valve thereby preventing thought irresponsible persons from making n by turning the handle in the rvrr tion, and therefore this valve QSjutCltllljj useful in hospitals and lumatic asylums. When the automatically closing valve 0 in the position shown in Fig. and the supply pipe becomes empty the air enters through the outlet 7) of the spindle a. on account of the falling of the liquid in the casing 61 producing a vacuum, and the atmospheric excess of pressure on the under side of the automatically closing valve 0 Will lift same. The pipe is therefore automatically ventilated, whereby the suspi-mding of a Water coliuni'i in the casingr (Z is prevented, and a. complete emptying oil the pipe and cool is insured The possibility of Withdrawing the main valve which is subjected to the most Wear,

enables repairs to be executed, at any mo ment, Without it being; necessary to loosen any rigidly fixed part of: the tap or to use any special tools. Thus there is no need oi:

a scratching; or de. 'r'uetion of the metal parts, and the jet regulator is simple, can,- not be ejected, but can be eas ly removed and cleaned.

i It is to be understood that variouschanges -1n the form, proportion and mlnor' details of construction may be resorted to without saorificins any of the advantages or departing Ll'IODTl the spirit of the invention.

Having fully described my ii'ivention,what I claim is:

1. In a valve cook, the combination of a hollow spindle having an outlet and a valve seat at each side of the outlet, a casing threaded on the spindle, a main valve carried by the casing for ei'igaging one of: said valve seats, secondary valve supported by the main valve adapted to engage the other valve seat, and means for suppoi. the main valve in the casing whereby it can be removed Withoutdisconnecting the casing: from the spindle, substantially as described. 2. In a valve cook, the combination of a hollow spindle having an outlet and a valve seat at each side of the outlet, a casing tlnjeadcd 0n the spindle. a handle secured to the casing for rotati" same, a. tin valve for engaging one oi. d valve ats. a secondary valve supported by the main valve adapted to engage the ot 101' valve s i, a plurality of ribs extending radially from the main valve, a shoulder in the casing, and the casing being provided with grooves extendingfrom the shoulder to the end of the casing for receiving the ribs whereby the ribs can be introduced into said grooves and moved beyond them and then rotated to engage said shoulder for supporting the main valve, subs'mntiall as described.

3. In a valve cook, the combination of a hollo spindle having an outlet and a valve seat at each side of the outlet, a casing threaded on the spindle, a handle secured to the casing for rotating same, a main valve for engaging one of said valve seats, a secondary valve supported by the main valve and adapted to engage the other valve seat, a stem fixed to the main valve, a plurality of ribs extending radially from'the upper portion of the stem, the stem being slotted, a. plurality of plates fixed in the slot in said stem and having their sides bent to form a jet regulator, a shoulder in the casing, and the casing being provided With grooves extending from the shoulder to the end. of the casing whereby the ribs can be intrmluced into said grooves and moved beyond them and then rotated to engage said shoulder for supporting the main valve, substantially as described.

4. In a valve cook, the combination of a hollow spindle having a valve seat at each side of the outlet, a casing threaded 0n the spin lo, a handle secured to the casing for rotating the same, a main valve for engaging one of said valve seats, a secondary valve supported by the main valve adapted to engage the other valve seat, a supporting member, the main valve being secured to (he su 'iporting member, a plurality of ribs extending radially from the supporting member, a stem threaded in the supporting member and having a longitudinal slot, a plurality of plates fixed in the slot and hav ing their sides bent to form a jet regulator, a shoulder in the casing, and the casing eing provided with grooves extendii'ig from said shoulder to the end of the casing for receiving: the ribs whereby the ribs can be introduced into said grooves and moved beyond them and then rotated to engage said 

